Abstract In this study, tantalum network nanoparticles are prepared from a Ta2O5+kMg system via a liquid magnesium-controlled combustion reaction. Super-stoichiometric amounts of magnesium are used in the preparation of a reaction mixture to produce a liquid magnesium pool capable of lowering the combustion temperature and leading to the formation of Ta network structures. The heat transfer kinetics from the hot reaction zone of ‘cold’ Mg particles is determined using heat transfer-coupled fluid dynamics simulation software. The formation of network structures is characterized through SEM, TEM, XRD, and BET analysis techniques. The mechanism of network formation is explained based on solid particle collisions in liquid media. Our method is able to produce Ta network structures in which the size of individual particles ranges between 50 and 700 nm.

中文翻译：

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Ta2O5+kMg 体系中液态镁控制燃烧的钽网络纳米粒子

摘要 在本研究中，通过液态镁控制的燃烧反应，以 Ta2O5+kMg 体系为原料制备了钽网络纳米颗粒。超化学计量的镁用于制备反应混合物，以产生能够降低燃烧温度并导致形成 Ta 网络结构的液态镁池。使用传热耦合流体动力学模拟软件确定来自“冷”Mg 颗粒热反应区的传热动力学。通过SEM、TEM、XRD和BET分析技术表征网络结构的形成。基于液体介质中的固体颗粒碰撞来解释网络形成的机制。我们的方法能够产生 Ta 网络结构，其中单个粒子的大小范围在 50 到 700 nm 之间。